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H335 — May cause respiratory irritation

Hazard class: Specific target organ toxicity, single exposure · Category 3 (respiratory tract irritation)

1522 substances with this hazard classification

What does H335 mean?

Inhalation may cause irritation of the respiratory tract.

Safety Guidance

Avoid breathing dust, fume, gas, mist, vapours, or spray. Use only outdoors or in a well-ventilated area.

Substances with H335

SubstanceCAS NumberSignal Word
(4-aminophenyl)pyrrolidinone 71412-08-3 Warning
(4-aminophenylthio)acetic acid 104-18-7 Danger
(4-bromophenoxy)acetic acid 1878-91-7 Warning
(4-bromophenoxy)trimethylsilane 17878-44-3 Warning
(4-bromophenyl)diphenylphosphine 734-59-8 Warning
(4-carboxybutyl)triphenylphosphonium bromide 17814-85-6 Warning
(4-chloro-2-formylphenoxy)acetic acid 14440-47-2 Warning
(4-chlorobenzyl)triphenylphosphonium chloride 1530-39-8 Warning
(4-chlorobutyl)benzene 4830-93-7 Warning
(4-chlorophenyl)urea 140-38-5 Danger
(4-ethylphenoxy)acetic acid 24431-27-4 Warning
(4-fluorophenyl)acetone 459-03-0 Warning
(±)-4-fluorophenylglycine 7292-73-1 Warning
(4-fluorophenyl)hydrazine 371-14-2 Danger
(4-hydrazinophenyl)-N-methylmethanesulfonamide hydrochloride 81880-96-8 Danger
(4-hydroxyphenyl)[(3-methoxy-1-methyl-3-oxo-1-propenyl)amino... 83918-71-2 Warning
(4-hydroxyphenyl) 3-pyridyl ketone 35926-15-9 Warning
(±)-4-hydroxyphenylglycine 6324-01-2 Warning
(4-methoxy-4-oxo-2-butenyl)triphenylphosphonium bromide 2181-98-8 Warning
(4-methoxybenzyl)triphenylphosphonium chloride 18583-41-0 Warning
(4-methoxyphenoxy)acetic acid 1877-75-4 Warning
(4-methoxyphenyl)glycolonitrile 33646-40-1 Warning
(4-methylbenzyl)triphenylphosphonium bromide 2378-86-1 Warning
(4-methylphenoxy)acetic acid 940-64-7 Warning
(4-nitrophenyl)hydrazine monohydrochloride 636-99-7 Danger
(4-nitrophenyl)methyl [5R-[5α,6α(R*)]]-6-(1-hydroxyethyl)-3-... 64067-13-6 Warning
((4-phenylbutyl)hydroxyphosphoryl)acetic acid 83623-61-4 Danger
(4-pyridylthio)acetic acid 10351-19-6 Warning
(4R)-4-methyl-1,3-dioxolan-2-one 16606-55-6 Warning
(4R-cis)-5-methyl-2-oxoimidazolidine-4-hexanoic acid 533-48-2 Warning
(4S)-4-hydroxyoxolan-2-one 7331-52-4 Warning
(4-tert-butyl-2,6-dimethylphenyl)acetonitrile 84803-57-6 Warning
(4-tolylsulphonyl)acetic acid 3937-96-0 Warning
(4α,8α,9β,13α,14β,17Z)-16β-acetoxy-3α,11α-dihydroxy-29-norda... 16391-75-6 Warning
(5or8)-aminonaphthalene-2-sulphonic acid 51548-48-2 Warning
(5α)-4,5-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride 52446-24-9 Danger
(6L)lithium iodide 21752-61-4 Warning
(6R-trans)-7-amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methy... 24209-38-9 Warning
(6R-trans)-7-amino-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio]... 30246-33-4 Danger
(7L)lithium fluoride 17409-87-9 Danger
(7Z,9E)-dodecadienyl acetate 55774-32-8 Warning
(8-chloro-1-naphthylthio)acetic acid 129-94-2 Warning
(8E,10E)-dodeca-8,10-dienyl acetate 53880-51-6 Warning
(8α,9R)-1-benzyl-9-hydroxycinchonanium chloride 69257-04-1 Warning
(9S)-1-benzyl-9-hydroxycinchonanium chloride 69221-14-3 Warning
(9α,13α,14α)-7,8-didehydro-4-hydroxy-3,7-dimethoxy-17-methyl... 115-53-7 Warning
(±)-(acetamido)phenylacetic acid 15962-46-6 Warning
(acetylthio)succinic anhydride 6953-60-2 Warning
(allylsulphonyl)benzene 16212-05-8 Warning
(±)-amino(2-fluorophenyl)acetic acid 84145-28-8 Warning